The European Space Agency's Hera mission is set to arrive at the Dimorphos asteroid in November, marking a significant milestone in the study of asteroid deflection. The spacecraft will conduct a close-up survey of the impact site caused by NASA's DART spacecraft, which collided with Dimorphos in September 2022. The DART impact was a groundbreaking moment in space exploration, as it was the first time an object in the Solar System had its orbit changed by human action. However, the effects of the impact on Dimorphos itself remain a mystery. Hera's mission will provide valuable insights into the asteroid's composition, shape, and internal structure. The spacecraft will also investigate the asteroid's surface features, including craters, boulders, and other geological formations. In addition to studying the impact site, Hera will explore 10 asteroid mysteries, including the asteroid's internal structure, its rotation period, and its orbital dynamics. The mission will also investigate the asteroid's surface composition, including the presence of water ice, organic molecules, and other potential resources. The Hera mission is a crucial step in developing a well-understood planetary defence deflection technique. By studying the effects of the DART impact, scientists hope to gain a better understanding of how to deflect asteroids that pose a threat to Earth. The mission will also provide valuable insights into the formation and evolution of asteroids, which are remnants from the early days of the Solar System. The Hera mission is a collaborative effort between the European Space Agency and NASA, with the goal of advancing our understanding of asteroids and improving our ability to protect the planet from potential asteroid threats. The mission is expected to provide a wealth of new information about asteroids and their properties, which will help scientists to better understand these mysterious objects.